Phosphorus key facts
as of Oct 2026- Developer of a cyber-physical systems platform designed to deliver a proactive approach to security management and breach prevention.
- Phosphorus is valued at approximately $160.0M as of Oct 2026 (last reported valuation).
- It has raised $56.3M; the latest was Later Stage VC in Apr 2025.
- Notable investors include Service Provider Capital, MassMutual Ventures, Evolution Equity Partners, Rsquared, SYN Ventures — 13 tracked in total.
- Status: Privately Held (backing).
Phosphorus's last reported valuation, Dec 2023. Nothing priced has surfaced since.
- ·The complete investor list: 13 names
- ·Watch Phosphorus: the Monday email on marks, rounds and moves
Phosphorus funding rounds
No funding rounds for Phosphorus are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
Who backs Phosphorus
13+Phosphorus valuation
Phosphorus's last reported valuation was $160 million in Dec 2023. No priced round, secondary trade or fund mark has surfaced since.
Phosphorus investors
13 investors are on record for Phosphorus, including Service Provider Capital, MassMutual Ventures, Evolution Equity Partners and Rsquared. By type, the record holds 5 venture capital firms and 1 growth equity firm.
About Phosphorus
Developer of a cyber-physical systems platform designed to deliver a proactive approach to security management and breach prevention. The company offers a unified xIoT security management platform that provides discovery, risk assessment, continuous monitoring, and automated mitigation, enabling industries to manage the security of connected devices effectively and accurately.
- Sector
- Information Technology
- HQ
- Nashville, TN, United States
- Founded
- 2017
- Employees
- 60
- Website
- phosphorus.io/
- Ownership
- Privately Held (backing)
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